Two balls of charges `q_(1)` and `q_(2)` initially have a velocity of the same magnitude and direction. After a uniform electric field has been applied for a certain time. The direction of the first ball changes by `60^(@)` and the velocity magnitude is reduced by half. The direction of velocity of the second ball changes by `90^(@)`. In what ratio will the velocity of the second ball change? Determine, the magnitude of the charge to mass ratio of the second ball if it is equal to `alpha_(1)` for the first ball. Ignore the electrostatic interaction between the balls.
,

Answer

`V/(sqrt(3))`